> It's still the densest area of the US outside of Manhattan Do you have a source for that? Wikipedia (https://en.m.wikipedia.org/wiki/List_of_United_States_cities...) seems to suggest the incorporated city is the second densest major city after New York, but not that San Francisco is the most sense place in the us after Manhattan. It's often cited that Brooklyn is twice as dense as SF for instance. Cambridge Massachusetts is more dense than San Francisco.